Question

1) Rusting of iron is a _________ chemical change.

2) Oxygen is a_________ in respiration.

3) RBCs of the blood contain _________ an iron compound.

4) Temperature is the measure of the _________ kinetic energy of the atoms in a substance.

5) Medium is _________ for generation of sound.​

Answer 1

Answer:

1) Irreversible

2) Reactant

3) Haemoglobin

4) Average

5) Required